ORIGINAL PROBLEM:
4/670MP crashes with "panic: free: freeing free frag".
The crash seems to be quota induced, when quota is disabled
the machine just keeps ticking.
MY SETUP:
4/670MP (1*2Ross), 4.1.3 UFS & NFS jumbo patches,
DiskSuite 1.0 with striped metadisk, tmpfs(4S).
(Respondents setups *similar*.)
BUG NUMBER: 1108897
FEEDBACK/CONCLUSIONS/ASSUMPTIONS:
Several people has been bitten by this bug,
two of them had *not* quotas enabled.
It definitely seems load related, i.e. it occurs during high loads.
A theory (of mine) is that quotas makes things worse.
One person had "sun4m jumbo patch"/100726-05 installed and was
waiting to see if it helped.
sutela@Mirfak.cc.utu.fi (Kari Sutela) had gotten a
*VERY UNOFFICAL* adb(1) patch from his local support center
which seems to keep the bug away (see below!).
WHAT HAVE I DONE:
(Taken a deep breath &) patched the running kernel with adb(1)
and so far the machine is running excellent (I did this on april 28).
Made a kernel incorporating "sun4m jumbo patch"/100726-05 and the
adb(1) patch. I will reboot the machine with this kernel next week.
THE ADB(1) PATCH:
***At your own risk***
On a sun4c or sun4m with 4.1.3 only !
For a running kernel:
$ cp /vmunix /vmunix.sav
$ adb -k -w /vmunix /dev/mem
rwip+534?W 0x90900000
rwip+534/W 0x90900000
^D
The first adb line patches the vmunix file & the second patches
the running kernel image in memory.
For a new kernel (not running yet):
$ adb -w ./vmunix
rwip+534?W 0x90900000
^D
THANKS TO:
nash@gondor.sdsu.edu (Ron Nash),
sutela@Mirfak.cc.utu.fi (Kari Sutela),
"J. Porter Clark" <jpc@avdms8.msfc.nasa.gov>,
Lynton Willson <lwillson@laurel.ocs.mq.edu.au>,
per@erix.ericsson.se (Per Hedeland)
SUN, READ THIS: coordinate you support centers please.
--
Hans C Larsson Email: hans@smab.se
Saab Missiles Motto: yes
Sweden Disclaimers: oh yes
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:07:47 CDT